Shoe machines



J. N. ALLARD Sept. 13, 1966 SHOE MA CHI NES 5 Sheets-Sheet 1 Filed May25, 1965 :1 [r2 venfor Jules N. A/Zard 5y hi5 Affohhey fimnafl'f w I J.N. ALLARD Sept. 13, 1966 SHOE MACHINES 5 Sheets-Sheet 2 Filed May 25,1965 Sept. 13, 1966 J. N. ALLARD 3,271,800

SHOE MACHINES Filed May 25, 1965 5 Sheets-Sheet 5 Sept. 13, 1966 J. N.YALLARD 3,271,800

SHOE MACHINES Filed May 25, 1965 5 Sheets-Sheet 4 Sept 13, 1966 FiledMay 25, 1965 J. N. ALLARD I SHOE MACHINES 5 Sheets-Sheet United StatesPatent 3,271,800 SHOE MACHINES Jules N. Allard, Tyngsboro, Mass,assignor to United Shoe Machinery Corporation, Boston, Mass, acorporation of New Jersey Filed May 25, 1965, Ser. No. 458,616 15Claims. (Cl. 12-125) This invention relates to shoe machines andparticularly to improvements in a machine for assembling shoe upperparts on their lasts and molding the back parts of heel portions of theupper materials upon the heel end portions of the lasts, for example, ofthe type disclosed in United States Letters Patent No. 3,138,810, issuedJune 30, 1964, on an application filed in the name of Karl V. Becker. Itwill be understood, however, that the invention is not limited inutility to embodiment in a machine of that particular type or to theexact mechanical construction herein illustrated.

As will appear by reference to the above-mentioned patent, during theoperation of each of the two assembling and back part molding stationsof the machine, a last with upper materials loosely assembled thereon,together with an insole, is mounted on a shoe supporting jack which isfirst elevated to cause the heel end of the shoe to be pressed firmlyagainst a shoe rest, or holddown, whereupon, after the operator hasproperly positioned the upper materials on the heel end of the last, amolding band is caused to embrace the heel end of the shoe thus to moldthe upper materals to the shape of the last. Next, wipers are operatedto wipe the lasting margin of the upper materials inwardly over and topress the lasting margin firmly against the insole at the heel end ofthe shoe, and a tack is driven to secure the overwiped upper materialsat the back line to the insole. Machines of the type illustrated in theBecker patent may also be, and in fact are widely used, in addition tothe above-described assembling and back part molding operation, forcement heel seat lasting, in which case the tacking mechanism is omittedand the heel end of the insole and/ or the lasting margin of the uppermaterials is rendered adhesive prior to the operation of the machine.

A common practice, when using the machines in this manner, is to apply aband of thermoplastic adhesive to the heel end of each insole before itis assembled on its last and then to reactivate this band ofthermoplastic adhesive immediately before the last with insole and uppermaterials assembled thereon is presented to the machine. Anotherprocedure is to apply to the heel end of the insole, assembled on itslast, a band of thermoplastic adhesive, place the last in the machine,assemble and position the upper materials thereon, and then initiateoperation of the machine. While each of these procedures is practicaland effective, when followed with appropriate care and discretion on thepart of the operator, they do have objectionable aspects including moreparticularly the extra time and labor involved in the step of applyingthe thermoplastic adhesive to the insole and the necessity for theoperator to work rather quickly in assembling and positioning the upperon the last before the thermoplastic adhesive has time to cool and loseits adhesive character. It is, therefore, a principal object of thisinvention to avoid the above-mentioned difliculties by the provision, ina machine of the above-mentioned type, of a novel and improved means forapplying thermoplastic adhesive to the heel end of the insole of eachshoe during the assembling, back part molding, and heel seat lastingoperation.

With the foregoing object in view, the herein illustrated machine, whichhas a jack for supporting a last with upper materials and an insoleassembled thereon and ice for causing the heel end of a shoe thereon tobe pressed tfirmly against a shoe rest, or holddown, a heel band formolding the upper materails to the heel end of the last, and Wipers forthereafter wiping the lasting margin of the upper materials inwardlyover and for pressing the lasting margin against the heel end of theinsole, is also provided with means operable, after the heel band hasbeen caused to embrace the upper materials and before the wipers areadvanced and closed, to apply to the heel end of the insole a band ofadhesive in condition for adhesively bonding the lasting margin to theinsole when pressed thereagainst by the wipers. More particularly, theaforementioned means compries a U-shaped nozzle mounted on the heel bandcarriage for movement first, with the carriage, to a position surroundngthe shoe rest above the heel end of the shoe and toeward thereof, andthen, relatively thereto, downwardly and rearwardly of the heel end of ashoe in the machine and into the pocket formed by the lasting margin ofthe upper materials, held upstanding by the heel band after it hasembraced the heel end of the shoe, and for movement upwardly andforwardly away from the insole, following the extrusion of a band ofmolten adhesive onto the insole, to provide space for the wipers as theyare immediately advanced and closed to wipe the lasting margin of theupper materials inwardly over and to press it firmly against the appliedband of adhesive, thereby adhesively to bond the lasting margin to theinsole in lasted position.

Preferably, and as herein illustrated, the above-mentioned nozzle isadapted to apply a band of molten thermoplastic adhesive on the insoleand to this end is associated with a melt body having a passagewayconnected to the nozzle and into which the leading end of a solid rod ofadhesive may be fed to be melted therein and to cause molten adhesive tobe extruded through the nozzle. For thus feeding a measured quantity ofsolid rod adhesive into the passageway, a pair of feed wheels areprovided, together with a motor for driving the feed wheels and anelectrical timing circuit for variably predetermining the length of rodfed into the passageway, during each operating cycle of the adhesiveapplying means, "and accordingly the quantity of molten adhesive appliedto each insole. Associated with the nozzle is a valve member which isyieldingly held in closed position and means responsive to engagementwith the insole of a shoe are provided for moving the valve to openposition when the nozzle is in contact with the insole. The nozzle has aU-shaped groove in its operating surface and is inclined, with ends ofthis groove lowermost, so as to be parallel with the heel end of aninsole of a shoe in the machine. Accordingly, adhesive left in thisgroove and not applied to the insole will tend to flow by gravity intothe two ends of the groove where it collects and from which iteventually drops. To avoid this drooling action, plate members areprovided for covering portions of the nozzle groove adjacent to itsends, these plates being provided with openings of a size to retainadhesive, under the action of gravity, but at the same time beingcapable of passing adhesive therethrough, and onto the insole, whenadhesive is extruded into the groove.

The above and other objects and features of the invention will appear inthe following detailed description of the preferred embodiment thereofillustrated in the accompanying drawings and will be pointed out in theclaims.

In the drawings,

FIG. 1 is a view in side elevation of a portion of one of the assemblingand back part molding stations of a machine of the type disclosed in theabove-mentioned Becker patent provided with an adhesive applying meansin accordance with the present invention;

FIG. 2 is a plan view of that part of the machine which is shown in FIG.1;

FIG. 3 is an exploded angular view of the adhesive nozzle which forms apart of the adhesive applying means;

FIG. 4 is an angular view of a part of the nozzle, as seen from below;

FIGS. 5, 6 and 7 are step views illustrating the operation of theadhesive applying means;

FIG. 8 is a diagrammatic view showing the fluid pressure system which isassociated with the assembling and back part molding station and theadhesive applying means shown in FIGS. 1, 2, 5, 6 and 7, and

FIG. 9 is an electrical diagram.

Referring to these drawings, FIG. 1 corresponds quite closely to FIG. 2of the Becker patent and shows one of the assembling and back partmolding stations of a machine of this type which has been modified bythe omission of the tacking mechanism and the provision of the novel andimproved adhesive applying means of this invention. Thus, theillustrated machine has a main frame member, indicated generally by thereference character 20, with which there is associated a shoe supportingjack 22, mounted for vertical movement by means of a fluid pressureactuated piston 24, in a cylinder 26, see FIG. 8, to press the heel endof a shoe S, comprising a last L with upper materials U, C, P, and aninsole 1, FIGS. 4, and 6, assembled thereon against a shoe rest, orholddown 30, in the manner explained in detail in the Becker patent.Also associated with the frame and slidably mounted thereon is a heelband carriage provided with a heel molding band 42, corresponding inconstruction and function to the heel band 156 illustrated in FIGS. 6and 12 of the Becker patent and described in columns 5 and 6 thereof,and wipers 50, 52 corresponding to the wipers 216, 220 in FIG. 4 of theBecker patent and described in columns 8 and 9 thereof.

For advancing the heel b and carriage 40 toward the heel end of a shoeon the jack, thereby to cause the heel band 4-2 to embrace and to shapethe upper materials to the heel end of the last, a fluid pressureactuated piston 60, in a cylinder 62, FIG. 8, is provided, this pistonhaving a piston rod 64 which is operatively connected to the carriage41) by means of a lever 66 and a link 68. The wipers 50, 52 are advancedand closed by a fluid pressure actuated piston 70, in a cylinder 72, seeFIG. 8, acting through various earns, rollers, etc, as described indetail in the Becker patent.

The fluid pressure system, diagrammatically illustrated in FIG. 8,comprises essentially that part of the entire fiuid pressure system of amachine of the type disclosed in the Becker patent, see FIG. 16 thereof,which is associated with one of the assembling and back part moldingstations and is modified by the addition of the adhesive applying meansof the present invention and its operating mechanism. Thus, an operatingcycle of this station is initiated in response to the actuation of atreadle operated valve 80 which upon depression of the treadle causesfluid under pressure from a main supply line 82 to be admitted to thecylinder 26. As a result of such admission of fluid under pressure tothis cylinder, the jack 22 will be elevated to press the heel end of ashoe S thereon against the shoe rest or holddown 30. This also sets avalve 84 so that, upon release of the treadle, fluid under pressure willbe admitted to cylinder 62 thus causing the heel band carriage to bemoved to the left, FIG. 2, so that the heel band 42 will embrace andshape the upper materials of the shoe to the heel end of the last. Inthe arrangement previously provided in the machine of the Becker patent,the wipers would now be advanced and closed and the operating cycle ofthe station com pleted automatically, in the manner fully explained inthe Becker patent. For the purposes of this invention, however, justbefore the wipers are advanced and closed a band of molten thermoplasticadhesive is applied to the heel end of the insole in the followingmanner, and by means of mechanism about to be described.

Referring to FIGS. 1 and 2 of the drawings, there is mounted on the heelband carriage 40 an auxiliary frame member, indicated generally by thereference character 1611 having spaced apart upstanding side portions102, 102. Secured to these side portions are two bracket-like arms 104,1114 joined by cross webs 106, 108. Suspended between the side portions102, 102, by means of parallel links 1-10, 111 112, 112, is a melt bodyformed of suitable metal and indicated generally by the referencecharacter 114, provided with an elongated passageway 116 and an enlargedleft-hand end 1155, as viewed in FIGS. 1 and 2, the enlarged end beingcut away, as indicated by the reference character 1211, to provide aclearance space for a purpose soon to appear. Fastened to the oppositesides of the melt body 114, with insulating pieces 122, 122 interposedtherebet'ween, are two side plates 124, 124 which extend to the rightbeyond the melt body, as shown, and supported on these side plates is acover plate 126.

Supported on the cover plate 126 is a cylindrical housing 130 in whichthere is mounted an electrical motor 132 having a geared output shaft134 (this housing, motor etc. being omitted from FIG. 2 to simplify thedisclosure and a portion of the cover plate 126 being broken away toexpose certain parts beneath it). Secured to the lower side of thiscover plate is a bracket member 136 which supports, at its lower end, apair of toothed feed wheels 1140, 142, FIG. 2, arranged to be drivenfrom the output shaft 134 of the motor 132, through suitable gearingincluding a gear 144 which appears in FIG. 1 of the drawings. Alsoassociated with this bracket member is a guide tube 46 for directing theleading end of a solid flexible rod R of thermoplastic adhesive, storedon a reel 14% suitably mounted at the outer ends of the bracket members164, 194, to the feed wheels 140, 142 which feed it into and alongpassageway 116 in the melt body 114.

Pivotally mounted on the cross web 106, is a cylinder 156 containing apiston 1 52 having a piston rod 154 which extends out through a boss 156on the left-hand end of the cylinder, FIG. 2, see also FIG. 8. Thispiston rod is connected, by means of a pin 158 to the side plates 124,12-4 and thence to the melt body 114 which is normally held in theelevated position shown in FIGS. 1, 5 and 7 by fluid under pressureadmitted to the righthand end of the cylinder 1'50 (left-hand end asviewed in FIG. 8) with the front edges of upstanding parts of the sideplates 124, 124- bearing against a stop rod 164) which extends betweenthe side portions 102, 102 of the frame member 1%.

Referring to FIGS. 37, there is secured to the lower side of theenlarged end 118 of the melt body 114, by means of screws 170, 170, anozzle member, indicated generally by the reference character 172 andhaving a downwardly projecting portion 176 shaped as shown in FIG. 4,the nozzle member itself being cut away as indicated by the referencecharacter 17 8 to match the cutaway portion 120 of the enlarged end 118. On its upper surface, the nozzle member is provided with a U-shapedgroove 180 and directly below this groove, and in the lower part of theprojecting portion 176, is a similarly shaped but narrower groove 182,these two grooves being in communication through a plurality ofapertures, 1 84, 184, FIGS. 3 and 4. When the nozzle member 1'72 isassembled on the enlarged end 11 8 of the melt body 114, the groove 180is in communication, through a vertically extending bore 186, with thepassageway 116 of the melt body 114, FIGS. 5, 6 and 7.

Received within the groove 180 is a U-shaped valve plate and the headsof three operating pins 192, 192, 192 which extend through certain ofthe apertures 184 and project beyond the lower work-engaging surface194- of the nozzle member 172, when the nozzle member is not inoperative engagement with the heel end of the insole of a shoe, seeFIGS. 5 and 7. This valve plate is yieldably held in engagement with thebottom of the groove 180, thus to cover the apertures 1'84, 184, bymeans of coil springs 196, 196, 196 which surround guide pins 198 andwhich are received in bores 200 in the end portion 118 of the melt body.When the nozzle member is brought into engagement with the heel end ofan insole I as shown in FIG. 6 the valve plate 190 will be elevated touncover the apertures 184, .184. As will be seen in FIG. 6, the groove 180 has an enlarged portion which is considerably wider than the valveplate 190 so that the adhesive can flow from bore 186 around and belowthe valve plate. Immediately thereafter, molten adhesive will beextruded through these apertures and the groove 182 and applied as aband of adhesive on the heel end of the insole in a manner about to bedescribed. U-pon elevation of the nozzle away from the insole, theapertures 184, 18-4 will again be covered by the valve plate 190.

As is shown in FIGS. 5, 6 and 7, and see also FIG. 1 of theabove-mentioned Becker patent, the frame 20 of the herein illustratedmachine (corresponding to the frame member 36 of the machine of theBecker patent) is tipped forwardly so that the heel band carriage 40 andother parts carried thereby including the melt body 114 and the nozzle172 are inclined from the horizontal at an angle of approximatelyAccordingly, after the apertures 1 84, 184 have been closed by the valveplate 190 as a result of the elevation of the nozzle to the positionshown in FIG. 7, molten adhesive still remaining in the groove 182 andnot previously transferred from this groove to the insole, will tend torun to the left as viewed in FIG. 7, under the action of gravity, andwill collect in the two ends of this groove, eventually forming a largeenough drop to fall by gravity out of the ends of the groove. To avoidthis so-called drooling action, cover plates 202, 202, provided withapertures 204, 204 are secure-d to the nozzle member 172 over the endsof the groove 1 82. The apertures 204, 204 while large enough to permitthe flow of molten adhesive therethrough under pressure are small enoughto inhibit flow by gravity.

The enlarged end 118 of the melt body 114, is heated by means of twoelectrical heaters 220, 220, FIG. 3, and see also FIG. 9, which receiveelectrical energy from a pair of lines 222, 222 under the control of athermostat switch 224. A second thermostat switch 226 is provided forpreventing operation of the adhesive applying means until the melt bodyhas reached the proper temperature.

Referring to FIG. 8, the treadly operated valve 80 is connected to oneend of the jack cylinder 26 (i.e. the lower end) by means of a conduit250 in which there is a check valve 252, a pilot operated exhaust valve254, a pressure regulator valve 256 and a flow control valve 258, and tothe other end of this cylinder by means of a conduit 260 in which islocated the valve 84, previously referred to and a quick exhaust valve264. Leading from one outlet of the valve 84 is a conduit 270 which maybe connected by a pilot operated reversing valve 280 either to a conduit272 leading to one end of the wiper operating cylinder 72 through avalve 282 and a flow control valve 284, or to a conduit 274 leading toone end of the cylinder 150 through a solenoid operated valve 276 and asequence valve 278.

Conduit 270 is connected to the conduit 250, at a point between thevalve 254 and the valve 256, through a conduit 290 and a one-way checkvalve 292, and to one end of the heel band carriage operating cylinder62 through a conduit 300- in which there are a pressure regulating valve302 and a quick exhaust valve 304. The other end of this cylinder isconnected to the conduit 260 'by means of a conduit 310, which alsoleads to one end of the wiper operating cylinder 72. The other end ofthe cylinder 150 is connected to the main supply line 82 through aconduit 320, in which there are a flow control valve 322 and a pilotoperated valve 324. The pilot operated reversing valve 280 is adapted tobe operated by pressure fluid from the conduit 274 which passes througha conduit 330 and a solenoid operated valve 332.

When the piston 152 is in the position shown in FIGS. 1, 2 and 8, thevalve 282 will be opened against the resistance of a return spring 340by reason of a direct engagement of its operating plunger 341 with theboss 156 on the cylinder 150. At the same time, a limit switch 342, FIG.9, will remain opened. This switch, when closed, connects the motor 132and an electrical timing device, indicated generally by the referencecharacter 350 and including a switch 352, across the lines 222, 222. Theswitch 352, when closed, connects the solenoid 354 of the valve 332across the lines 222, 222.

After the operator has placed a last L having an insole I thereon uponthe jack 22 and has assembled and located upper materials, including anupper U, a counter C and a counter pocket member P, on the last, he willdepress the treadle operated valve to cause the jack post to rise and toclamp the heel end of the shoe against the shoe rest or holddown 30. Hethen releases the treadle valve and causes the heel carriage 40,together with the adhesive applying means, including the melt body 114and the nozzle 172, to move to the left, FIGS. 1 and 2, and the heelband to snugly embrace the heel end of the shoe as shown in FIG. 5, andin the manner explained in the Becker patent referred to above. Thecutaway portions 120, 178 of the end 118 of the melt body and of thenozzle 172 fit around the shoe rest 30, as shown, so that the nozzlesurrounds the shoe rest, above the heel end of the shoe and toewardthereof. Pressure fluid will now enter the conduit 270, pass through thevalve 280 into the conduit 274. If the melt body 114 has been brought upto the proper temperature (i.e. a temperature suflicient to melt theleading end of a solid rod of adhesive as it it is fed through thepassageway 116, as sensed by the thermostatic switch 226), valve 276will be opened by its solenoid 277 and pressure fluid will flow throughthe sequence valve 278, left-hand side of the cylinder 150, FIG. 2, thuscausing the piston 152 to move to the right (to the left, FIG. 8).

As a result of such movement of this piston, the melt body 114 andnozzle 172 will be swung downwardly and heelwardly of the shoe so thatthe nozzle 172 is inserted nicely within the pocket formed by thelasting margin of the upper U, held upstanding by the band 42, and willfinally come to rest in the position shown in FIG. 6 with the nozzleresting against the insole I. The switch 342 will now be closed as aresult of the engagement of a side plate 124 with its operating plunger343, thus energizing the motor 132 and also the electrical timing device350. The motor 132 will now operate for a variably predetermined lengthof time to feed into and along the passageway 116 in the melt body 114 alength of the solid rod R of thermoplastic adhesive. As a result of thusfeeding the solid rod into the passageway 116, a variably predeterminedquantity of molten adhesive will be extruded through the nozzle 172,valve plate now being elevated by the pins 192, 192, to uncover theapertures 184, 184, into the lower groove 182 and thence as a band ontothe heel end of the insole I.

At the end of the variably predetermined time interval, the switch 352will close to energize the solenoid 354 thus causing the valve 332 toopen and valve 280 to reverse the connections of conduit 270, connectingit to the conduit 272 and conduit 274 to exhaust. The valve 324, whichwas closed when pressure fluid was admitted to the conduit 274 (seepilot conduit 275) is now opened and pressure fluid from the main supplysource is admitted through conduit 320 to the opposite end of thecylinder 150. Accordingly, the melt body 7 114 and nozzle 172 will nowbe elevated, see FIG. 7, and the switch 342 again opened thus stoppingthe motor 132 and the feeding of the rod of adhesive. Pressure fluidalso flows through the conduit 272 and now open valve 282 and flowcontrol valve 284 to the wiper operating cylinder 72 causing the wipers50, 52 to be advanced and closed for wiping the lasting margin of theupper U inwardly over and for pressing it against the bottom of theinsole thereby bonding the lasting margin ad hesively to the insole bythe band of thermoplastic adhesive which had just previously beenapplied thereto. As is explained in the Becker patent, the wipers in oneof the assembling and back part molding stations remain in pressingengagement with the shoe until the wipers are advanced and closed in theother station whereupon the parts return to their original positions, asshown in FIGS. 1 and 2. Also, either station may be releasedindependently of the other by means of a release valve 360 which admitsmain line pressure to a conduit 362, FIG. 8.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers and power operated mechanism for actuating said ban-d andsaid wipers in predetermined sequence first to cause the band to embracethe upper materials and shape them to the heel end of the last and thento cause the wipers to advance and close to wipe the lasting margin ofthe upper materials inwardly over and to press it against the heel endof the insole, means for applying adhesive to the heel end of an insoleof a shoe on the supporting means after the upper materials have beenshaped to the last by the molding band and before the wipers areadvanced and closed, said means comprising a nozzle member mounted formovement first to a position above the heel end of the shoe and toewardthereof, next downwardly and heelwardly into the pocket formed by thelasting margin of the upper held upstanding by the molding band and intocontact .with the insole and then upwardly away from the insole, meansfor so moving the nozzle member, and means for extruding adhesivethrough the nozzle and onto the heel end of the insole while the nozzleis in contact therewith.

2. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers and power operated mechanism foractuating sa-id band and said wipers in predetermined sequence first tocause the band to embrace the upper materials and shape them to the heelend of the last and then to cause the wipers to advance and close towipe the lasting margin of the upper materials inwardly over and topress it against the heel end of the insole, means for applying adhesiveto the heel end of the insole of a shoe on the supporting means afterthe upper materials have been shaped to the last by the molding band andbefore the wipers are advanced and closed, said means comprising aU-shaped nozzle member mounted for movement first to a positionsurrounding the shoe rest above the heel end of the shoe and toewardthereof, next downwardly and heelwardly into the pocket formed by thelasting margin of the upper held upstanding by the molding band and intocontact with the insole and then upwardly away from the insole, meansfor so moving the nozzle member, and means for extruding adhesivethrough the nozzle and onto the heel end of the insole while the nozzleis in contact therewith.

3. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers, a carriage on which the molding band is mounted, a poweroperated mechanism for actuating said carriage and said wipers inpredetermined sequence first to effect movement of the carriage to causethe band to embrace the upper materials and shape them to the heel endof the last and then to cause the wipers to advance and close to wipethe lasting margin of the upper materials inwardly over and to press itagainst the heel end of the insole, means for applying adhesive to theheel end of the insole of a shoe on the supporting means after the uppermaterials have been shaped to the last by the molding band and beforethe wipers are advanced and closed, said means comprising a nozzlemember mounted on the carriage for movement therewith first to aposition above the heel end of the shoe and toeward thereof, nextrelatively to the carriage downwardly and heelwardly into the pocketformed by the lasting margin of the upper held upstanding by the moldingband and into contact with the insole and then upwardly away from theinsole, means for so moving the nozzle member, and means for extrudingadhesive through the nozzle and onto the heel end of the insole whilethe nozzle is in contact therewith.

4. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers, a carriage on which the moldingband is mounted and power operated means for actuating said carriage andsaid (wipers in predetermined sequence first to effect movement of thecarriage to cause the band to embrace the upper materials and shape themto the heel end of the last and then to cause the wipers to advance andclose to wipe the lasting margin of the upper materials inwardly overand to press it against the heel end of the insole, means for applyingadhesive to the heel end of the insole of a shoe on the supporting meansafter the upper materials have been shaped to the last by the moldingband and before the wipers are advanced and closed, said meanscomprising a U-shaped nozzle member mounted on the carriage for movementtherewith first to a position surrounding the shoe rest above the heelend of the shoe and toeward thereof, as the band is caused to embracethe heel end of the shoe, next relatively to the carriage downwardly andheelwardly into the pocket formed by the lasting margin of the upperheld upstanding by the molding band and into contact with the insole andthen upwardly away from the insole, means for so moving the nozzlemember, and means for extruding adhesive through the nozzle and onto theheel end of the insole while the nozzle is in contact therewith.

5. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers and power operated mechanism for actuating said band andsaid wipers in predetermined sequence first to cause the band to embracethe upper materials and shape them to the heel end of the last and thento cause the wipers to advance and close to wipe the lasting margin ofthe upper materials inwardly over and to press it against the heel endof the insole, means for applying molten thermoplastic adhesive to theheel end of the insole of a shoe on the supporting means after the uppermaterials have been shaped to the last by the molding band and beforethe wipers are advanced and closed, said means comprising a nozzlemember mounted for movement first to a position above the heel end ofthe shoe and toeward thereof, next downwardly and heelwardly into thepocket formed by the lasting margin of the upper held upstanding by themolding band and into contact with the insole and then upwardly awayfrom the insole, means for so moving the nozzle member, and means forextruding a variably predetermined amount of molten thermoplasticadhesive through the nozzle and onto the heel end of the insole whilethe nozzle is in contact therewith.

' 6. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers and power operated mechanism foractuating said band and said Wipers in predetermined sequence first tocause the band to embrace the upper materials and shape them to the heelend of the last and then to cause the wipers to advance and close towipe the lasting margin of the upper materials inwardly over and topress it against the heel end of the insole, means for applying moltenthermoplastic adhesive to the heel end of the insole of a shoe on thesupporting means after the upper materials have been shaped to the lastby the molding band and before the wipers are advanced and closed, saidmeans comprising a U-shaped nozzle member mounted for movement first toa position surrounding the shoe rest above the heel end of the shoe andtoeward thereof, next downwardly and heelwardly into the pocket formedby the lasting margin of the upper held upstanding by the molding bandand into contact with the insole and then upwardly away from the insole,means for so moving the nozzle member, and means for extruding avariably predetermined amount of molten thermoplastic adhesive throughthe nozzle and onto the heel end of the insole while the nozzle is incontact therewith.

7. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers, a carriage on which the molding band is mounted and poweroperated mechanism for actuating said carriage and said wipers inpredetermined sequence first to effect movement of the carriage to causethe band to embrace the upper materials and shape them to the heel endof the last and then to cause the wipers to advance and close to wipethe lasting margin of the upper materials inwardly over and to press itagainst the heel end of the insole, means for applying moltenthermoplastic adhesive to the heel end of the insole of a shoe on thesupporting means after the upper materials have been shaped to the lastby the molding band and before the wipers are advanced and closed, saidmeans comprising a nOZZle member mounted on the carriage for movementtherewith first to a position above the heel end of the shoe and toewardthereof as the band is caused to embrace the heel end of the shoe, nextrelatively to the carriage downwardly and heelwardly into the pocketformed by the lasting margin of the upper held upstanding by themoldingband and into contact with the insole and then upwardly away fromthe insole, means for so moving the nozzle member, and means forextruding a variably predetermined amount of molten thermoplasticadhesive through the nozzle and onto the heel end of the insole whilethe nozzle is in contact therewith.

8. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers, a carriage on which the moldingband and wipers are mounted and power operated mechanism for actuatingsaid carriage and said wipers in predetermined sequence first to elfectmovement of the carriage to cause the band to embrace the uppermaterials and shape them to the heel end of the last and then to causethe wipers to advance and close to wipe the lasting margin of the uppermaterials inwardly over and to press it against the heel end of theinsole, means for applying molten thermoplastic adhesive to the heel endof the insole of a shoe on the supporting means after the uppermaterials have been shaped to the last by the molding band and beforethe wipers are advanced and closed, said means comprising a U-shapednozzle member mounted on the carriage for movement therewith first to aposition surrounding the shoe rest above the heel end of the shoe andtoeward thereof, as the band is caused to embrace the heel end of theshoe, next relatively to the carriage downwardly and heelwardly into thepocket formed by the lasting margin of the upper held upstanding by themolding band and into contact with the insole and then upwardly awayfrom the insole, means for so moving the nozzle member, and means forextruding a variably predetermined amount of molten thermoplasticadhesive through the nozzle onto the heel end of the insole while thenozzle is in contact therewith.

9. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers and power ope-rated mechanism for actuating said band andsaid wipers in predetermined sequence first to cause the band to embracethe upper materials and shape them to the heel end of the last and thento cause the wipers to advance and close to wipe the lasting margin ofthe upper materials inwardly over and to press it against the heel endof the insole, means for applying adhesive to the heel end of an insoleof a shoe on the supporting means after the upper materials have beenshaped to the last by the molding band and before the wipers areadvanced and closed, said means comprising a nozzle member mounted formovement first to a position above the heel end of the shoe and toewardthereof, next downwardly and heelwardly into the pocket formed by thelasting margin of the upper held upstanding by the molding band and intocontact with the insole and then upwardly away from the insole, meansfor so moving the nozzle member, a nozzle valve, means for yieldinglyholding said valve in closed position, means for moving said valve toopen position in response to engagement with the insole when the nozzleis in contact therewith, and means for extruding adhesive through thenozzle and onto the heel end of the insole while the nozzle is incontact therewith, and said valve member opened.

10. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers and power operated mechanism foractuating said band and said wipers in predetermined sequence first tocause the band to embrace the upper materials and shape them to the heelend of the last and then to cause the wipers to advance and close towipe the lasting margin of the upper materials inwardly over and topress it against the heel end of the insole, means for applying adhesiveto the heel end of the insole of a shoe on the supporting means afterthe upper materials have been shaped to the last by the molding band andbefore the wipers are advanced and closed, said means comprising aU-shaped nozzle member mounted for movement first to a positionsurrounding the shoe rest above the heel end of the shoe and toewardthereof, next downwardly and heelwardly into the pocket formed by thelasting margin of the upper held upstanding by the molding band and intocontact with the insole and then upwardly away from the insole, meansfor so moving the nozzle member, a nozzle valve, means for yieldinglyholding said valve in closed position, means for moving said valve toopen position in response to engagement with the insole when the nozzleis in contact therewith, and means for extruding adhesive through thenozzle and onto the heel end of the insole while the nozzle is incontact therewith and said valve member opened.

11. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, a moldingband, wipers, a carriage on p which the molding band is mounted, a powerope-rated supporting means after the upper materials have been shaped tothe last by the molding band and before the wipers are advanced andclosed, said means comprising a nozzle member mounted on the carriagefor movement therewith first to a position above the heel end of theshoe and toeward thereof, next relatively to the carriage downwardly andheelwardly into the pocket formed by the lasting margin of the upperheld upstanding by the molding band and into contact with the insole andthen upwardly away from the insole, means for so moving the nozzlemember, a nozzle valve, means for yieldingly holding said valve inclosed position, and means for moving said valve to open position inresponse to engagement with the insole when the nozzle is in contacttherewith, and means for extruding adhesive through the nozzle and ontothe heel end of the insole while the nozzle is in contact therewith andsaid valve member opened.

12. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, saidsupporting means including a jack and a shoe rest for engaging the heelend of the shoe, a molding band, wipers, a carriage on which the moldingband is mounted and power operated means for actuating said carriage andsaid wipers in predetermined sequence first to effect movement of thecarriage to cause the band to embrace the upper materials and shape themto the heel end of the last and then to cause the wipers to advance andclose to wipe the lasting margin of the upper materials inwardly overand to press it against the heel end of the insole, means for applyingadhesive to the heel end of the insole of a shoe on the supporting meansafter the upper materials have been shaped to the last by the moldingband and before the wipers are advanced and closed, said meanscomprising a U-shaped nozzle member mounted on the carriage for movementtherewith first to a position surrounding the shoe rest above the heelend of the shoe and toeward thereof, as the band is caused to embracethe heel end of the shoe, next relatively to the carriage downwardly andheelwardly into the pocket formed by the lasting margin of the upperheld upstanding by the molding band and into contact with the insole andthen upwardly away from the ins-ole, means for so moving the nozzlemember, a nozzle valve, means for yieldingly holding said valve inclosed position, and means for moving said valve to open position inresponse to engagement with the insole when the nozzle is in contacttherewith, and means for extruding adhesive through the nozzle and ontothe heel end of the insole while the nozzle is in contact therewith andsaid valve member opened.

13. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, in aninclined position with its toe end lowermost, a molding band, wiper-sand power operated mechanism for actuating said band and wipers, meansfor applying adhesive to the heel end of an insole of a shoe on thesupporting means, said means comprising a U-shaped nozzle having anoperating surface formed with a U-shaped groove, said nozzle beingdisposed with its operating surfaces substantially parallel to, andbeing movable into contact with, the heel end of the insole of a shoe onthe supporting means with the ends of its groove lowermost, means forextruding adhesive into the groove and thence onto the heel end of theinsole of the shoe while the nozzle is in contact therewith, and meansassociated witr each end of the groove in the nozzle for collecting andretaining adhesive not Withdrawn from the groove and applied to theinsole.

14. In a shoe machine having means for supporting a shoe comprising alast with an insole and upper materials assembled thereon, in aninclined position with its toe end lowermost, a molding band, wipers andpower operated mechanism for actuating said band and wipers, means forapplying adhesive to the heel end of an insole of a shoe on thesupporting means, said means comprising a U-shaped nozzle having anoperating surface formed with a U-shaped groove, said nozzle beingdisposed with its operating surface substantially parallel to, and beingmovable into contact with, the heel end of the insole of a shoe on thesupporting means with the ends of its groove lowermost, means forextruding adhesive into the groove and thence onto the heel end of theinsole of the shoe while the nozzle is in contact therewith, and meansassociated with each end of the groove in the nozzle for collecting andretaining adhesive not withdrawn from the groove and applied to theinsole, said lasting means comprising a separate member covering aportion of the groove adjacent to each end thereof.

15. In a shoe machine having means for supporting a shoe comprsing alast with an insole and upper materials assembled thereon, in aninclined position with its toe end lowermost, a molding band, Wipers andpower operated mechanism for actuating said band and wipers, means forapplying adhesive to the heel end of an insole of a shoe on thesupporting means, said means comprising a U-shaped nozzle having anoperating surface formed with a U-shaped groove, said nozzle beingdisposed with its operating surface substantially parallel to, and beingmovable into contact with, the heel end of the insole of a shoe on thesupporting means with the ends of its groove lowermost, means forextruding adhesive into the groove and thence onto the heel end of theinsole of the shoe while the nozzle is in contact therewith, and meansassociated with each end of the groove in the nozzle for collecting andretaining adhesive not withdrawn from the groove and applied to theinsole, said means comprising a separate member covering a portion ofthe groove adjacent each end thereof and provided with a number ofopenings of a size to retain adhesive which collects under the action ofgravty, in said end portions of the groove while at the same timepassing adhesive therethrough and onto the insole when adhesive isextruded into the groove.

References Cited by the Examiner UNITED STATES PATENTS Re. 25,596 6/1964Weinschenk 12-10.l 2,309,981 2/1943 Randall 118-410 2,614,527 10/1952Kamborian 118301 3,138,810 6/1964 Becker 1212.3

FRANK I. COHEN, Primary Examiner.

PATRICK D. LAWSON, Examiner.

13. IN A SHOE MACHINE HAVING MEANS FOR SUPPORTING A SHOE COMPRISING ALAST WITH AN INSOLE AND UPPER MATERIALS ASSEMBLED THEREON, IN ANINCLINED POSITION WITH ITS TOE END LOWERMOST, A MOLDING BAND, WIPERS ANDPOWER OPERATED MECHANISM FOR ACTUATING SAID BAND AND WIPERS, MEANS FORAPPLYING ADHESIVE TO THE HEEL END OF AN INSOLE OF A SHOE ON THESUPPORTING MEANS, SAID MEANS COMPRISING A U-SHAPED NOZZLE HAVING ANOPERATING SURFACE FORMED WITH A U-SHAPED GROOVE, SAID NOZZLE BEINGDISPOSED WITH ITS OPERATING SURFACES SUBSTANTAILLY PARALLEL TO, ANDBEING MOVABEL INTO CONTACT WITH, THE HEEL END OF THE INSOLE OF A SHOE ONTHE SUPPORTING MEANS WITH THE ENDS OF ITS GROOVE LOWERMOST, MEANS FOREXTRUDING ADHESIVE INTO THE GROOVE AND THENCE ONTO THE HEEL END OF THEINSOLE OF THE SHOE WHILE THE NOZZLE IS IN CONTACT THEREWITH, AND MEANSASSOCIATED